Spot cementing apparatus for laminating machines



W. S. RIDDLE Nov 22, 1949 SPOT CEMENTING APPARATUS FORILAMINATING MACHINES 3 Sheets-Sheet 1 Filed June 2, 1945 Nov. 22, 1949 w. s. RIDDLE 2,488,635

I SPOT CEMENTING APPARATUS FOR LAMINATING MACHINES Filed June 2, 1945 3 Sheets-Sheet 2 NR W WW Nov. 22, 1949 v w. s. RIDDLE 2,483,685

SPOT CEMENTING' APPARATUS FOR LAMINAT ING MACHINES Filed June 2, 1945 s Sheets-Sheet :s

IIITI n.- n HIIIIIIII I",

[72%72 zor-x wlfe7" Patented Nov. 22, 1949 UNITED STATES PATENT OFFICE SPOT C MENHNG APPARATUS FOR LAMINAT ING MACHINES Walter Sl Riddle, Ghigago, Ill, as'signor to Seaman Paper Company, Chicago, 111., a corporation of Illinois Ap lication Jll'fi 2, 1945, Serial- N0. 597,289

' d 2 Claims. (Cl. 91 47) This invention relates to a machine adapted for use in cementing two or more strips of fibrous material together to form a multi-ply strip. More particularly, this machine is adapted for use in forming multi ply strips of cotton batting of the type commonly employed as an insulating material for use in automobiles, airplanes and the like.

The present invention contemplates the provision of a machine adapted to apply spots of adhesive in transverse rows across the surface of one strip of fibrous material, and then to bring the adhesive coated strip into. tight engagement with another strip of material to form a multi-ply strip. The spots of adhesive material are pre-' ferably applied to the surface of one strip by means of reciprocable plungers arranged for ver--- tical movement through a tank of adhesive fluid and then into spot contact with the surface of the strip to be coated. Duringthe adhesive ap'-- plying operation, the treated strip and an un treated strip are drawn into tight engagement with each other by means of a pair of feed rolls which determine the linear speed of. the strips and also serve to compress same transversely to form a firm bonded connection between the two strips.

This invention embodies other novelfeatures; details of construction and arrangement of parts which are hereinafter set forth in the specification and claims and illustrated in the accompanying drawings wherein:

Fig. 1' is a side elevational view,- partly in section, showing a spot cementing machine embodying features of this invention.-

Fig. 2 i s a transverse sectional view taken the line 2-2 of Fig. l. H y, w Fig. 3 is an enlarged sectional view taken along the line 3-3 of Fig. 2. V

i Fig. 4 is a sectional view taken along the line 4 4 of Fig. 3.

Fig. 5 is a frag mentaryview illustrating two strips of material, one of which has spots of adhesive applied to one surface thereof for cementing the two strips together.

Referring now to the drawings for a better understanding of this invention, a spot cementing and laminating machine is shown as comprising a rectangular frame It formed of angle irdri and along having vertical members H and I2 connected together at their ends by means of longitudinal members l3 and It and transverse members It and IT. A roll of strip material to be spot cemented and laminated is supported on a mandrel l9 journaled in suitable side bearings 2|. The

pair of brackets 21 mounted on the vertically dis theframe if! from the roll it.

The vertical frame members I2 extend upwardly beyond the longitudinal frame members f3 to" support a pair of bearings 28 provided to receive a driving feed roll 29. A companion feed rolla: is mounted for vertical adjustment above the posed frame members If at the opposite end of driving feed roll 29 by means of a pair of bear-,

ihg's 32 formed with vertically disposed guide slots 33. A pair of winding rolls 34 and 36 are journaled in bearings 31 and v38, respectively, supported in spaced relation upon a suitable angle ir'on framework 39 mounted on the vertical frame members l2.

' A pair of guide rolls 4i and 42 are journaled in'bearings 4 3 and 44, respectively, mounted on the longitudinal frame members l3. A pair of plates 4-6 and 4f! extend transversely of the machine frame l6 and are supported upon longitiidinal frame members [3. The plates 46 and 41 are secured in parallel spaced relation by means of end plates 48 and are provided with hearing apertures 49 and 5| to snugly receive a plurality of reciprocable plungers 52. A pair of side plates 53 and end plates 54 are secured on the trans'versely' extending plate 46 to define.

therewith an adhesive supply tank 56. As more particularly illustrated in Fig. 2; the several plungers 52 are disposed in spaced relation trans: versely across the machine and are each provided" with a stop shoulder 51 and a helical compression spring 58. The compression springs 58 are disposed between the plate 46 and the stop shoulders 51 to yieldably resist upward movement of the plungers 52. A plurality of cams 59 are secured to a cam shaft 6| to actuate their respective plungers 52, the cam shaft being journaled at its ends in suitable bearings 62 mounted on a pair of channel members 63 having" their ends secured to the vertical frame members H and I2.

A pair of rectangular guide bearings 66 are supported upon opposite ends of the plate 46 to receive the ends of a guide and abutment bar 61 which is supported for vertical movement withir-i the guide bearings by means of bolts 68 and guide rods 69. The inner ends of the bolts 68 and guide .IQQS 59 are secured to the abutment bar 6'! and have their outer ends projecting through apertures provided in the upper end of their respective guide bearings 66. A pair of helical compression sprin s 1! are mounted on the guide rods 69 to yieldably resist upward movement of the abutment bar 61. The outer end of the bolt 68 is threaded to receive a wing nut 12 which is employed to adjustably position the abutment bar 61 with respect to the plungers 52. An adhesive supply reservoir 13 is mounted upon the upper end of the vertical frame members 12 and provided with a conduit 14 leading to the adhesive tank 55 to supply liquid adhesive to the tank under control of a valve 16.

An electric motor 18 is employed to drive a gear box shaft 19 by means of a sprocket chain 80 and sprockets 8| and B2. A sprocket 83 is also secured to the gear box shaft 19 and acts through a sprocket chain 84 to drive a sprocket 86 secured on an intermediate shaft 81. Another sprocket 88 is secured on the intermediate shaft 81 to act throu h a sprocket chain 89 and sprocket 9| to drive the feed driving roller 29 in a counter-clockwise direction. A sprocket 92 is secured on the driving feed roller 29 to act through a sprocket chain 93 to drive a sprocket 90 secured to the winding roll 34. Another sprocket 96 is secured on the winding roll 34 to act through sprocket chain 91 to drive a sprocket 98 secured on the Winding roll 36.

The driving shaft 19 is adapted to act through a plurality of gears, not shown, provided within the gear box I to drive a shaft I02. A sprocket I03 is secured to the shaft I02 to act through a sprocket chain I04 to drive a sprocket 195 secured on the cam shaft 6 I In the operation of the machine thus described, strip material I8 is adapted to pass over the guide roll 4| thence under the abutment bar 61 and over the guide roll 42 for engagement between the feed rolls 29 and 3|. Strip material 23 is directed around the intermediate shaft 81 and upwardly around the guide roll 4'2 and thence between the feed rolls 29 and 3|.

During the passage of the strip material I 9 under the abutment bar 61, the cams 59 act to move their respective plungers 52 upwardly for spot contact engagement with the under side of the strip material. As the upper ends of the plungers 52 move upwardly through the liquid adhesive provided within the tank 56, a small amount of the adhesive is carried upon the top flat contact surfaces of the plungers and is applied to the under side of the strip material in the form of spots, as indicated at I06 in Fig. 5. As the strip material I8 moves along under the abutment bar 61, it will be seen that the plungers 52 act to apply spots of adhesive I06 in transverse rows to the under side of the strip. After the spots of adhesive material I06 have been applied to the under surface of the strip material l8, this treated strip is brought into engagement with the untreated strip material 23 to form a two-ply strip which passes between the feed rolls 29 and 3| and is formed into a roll I01 by means of the winding rolls 34 and 36.

While this invention has been shown in but one form, it is obvious to those skilled in the art that it is not so limited but is susceptible of various changes and modifications without departing irom the spirit and scope of the claimed invenion.

I claim as my invention:

1. In a machine for progressively spot coating a web, a trough-shaped tank adapted to receive a liquid adhesive and having apertures formed in its bottom, a guide plate disposed in spaced parallel relation below the bottom of said tank and formed with apertures in registry with said tank apertures, plungers mounted for vertical reciprocable movement through said tank apertures and guide plate apertures, a guide frame, an abutment bar disposed in spaced parallel relation above said tank and in vertical alignment with said plungers, said abutment bar being mounted for vertical reciprocable movement along said guide frame, said abutment bar being formed with a flat abutment face to engage the upper side of the web, compression springs to yieldably resist upward movement of said abutment bar during upward movement of said plungers, adjustable stop means to limit the downward movement of said abutment bar, and actuating means to reciprocate said plungers.

2. In a machine for progressively spot coating a Web, a trough-shaped tank adapted to receive a liquid adhesive and having apertures formed in its bottom, a guide plate disposed in spaced parallel relation below the bottom of said tank and formed with apertures in registry with said tank apertures, plungers mounted for vertical reciprocable movement through said tank apertures and guide plate apertures, a guide frame, an abutment bar disposed in spaced parallel relation above said tank and in vertical alignment with said plungers, said abutment bar being mounted for vertical reciprocable movement along said guide frame, said abutment bar being formed with a flat abutment face to engage the upper side of the web, compression springs to yieldably resist upward movement of said abutment bar during upward movement of said plungers, adjustable stop means to limit the downward move ment of said abutment bar, actuating means to reciprocate said plungers, said actuating means including a cam shaft, individual cams mounted on said cam shaft to engage the lower ends of their respective plungers, and compression springs to yieldably resist upward movement of their respective plungers.

WALTER S. RIDDLE.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 425,544 Lake Apr. 15, 1890 857,423 Trismen June 18, 1907 1,005,486 Thoma Oct. 10, 1911 1,019,494 Borde et a1 Mar. 5, 1912 1,312,567 Ordway Aug. 12, 1919 1,935,031 Joslin Nov. 14, 1933 2,029,922 Heckel et al Feb. 4, 1936 2,147,856 Novick Feb. 21, 1939 2,236,968 Cunnington Apr. 1, 1941 FOREIGN PATENTS Number Country Date 163,909 Great Britain June 2, 1921 50,275 Denmark May 14, 1935 

